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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2021-06-30 18:54:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-01 11:06:04 -0700
commitf39650de687e35766572ac89dbcd16a5911e2f0a (patch)
tree6dd795500486f4d8cf3f3e834eb644114edca2e0 /include/linux/kernel.h
parent070c46505a265d54eba7f713760fa6ed984f2921 (diff)
kernel.h: split out panic and oops helpers
kernel.h is being used as a dump for all kinds of stuff for a long time. Here is the attempt to start cleaning it up by splitting out panic and oops helpers. There are several purposes of doing this: - dropping dependency in bug.h - dropping a loop by moving out panic_notifier.h - unload kernel.h from something which has its own domain At the same time convert users tree-wide to use new headers, although for the time being include new header back to kernel.h to avoid twisted indirected includes for existing users. [akpm@linux-foundation.org: thread_info.h needs limits.h] [andriy.shevchenko@linux.intel.com: ia64 fix] Link: https://lkml.kernel.org/r/20210520130557.55277-1-andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20210511074137.33666-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Co-developed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Corey Minyard <cminyard@mvista.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Wei Liu <wei.liu@kernel.org> Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Helge Deller <deller@gmx.de> # parisc Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/kernel.h')
-rw-r--r--include/linux/kernel.h84
1 files changed, 1 insertions, 83 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index bf950621febf..baea2eb763d0 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -14,6 +14,7 @@
#include <linux/math.h>
#include <linux/minmax.h>
#include <linux/typecheck.h>
+#include <linux/panic.h>
#include <linux/printk.h>
#include <linux/build_bug.h>
#include <linux/static_call_types.h>
@@ -72,7 +73,6 @@
#define lower_32_bits(n) ((u32)((n) & 0xffffffff))
struct completion;
-struct pt_regs;
struct user;
#ifdef CONFIG_PREEMPT_VOLUNTARY
@@ -177,14 +177,6 @@ void __might_fault(const char *file, int line);
static inline void might_fault(void) { }
#endif
-extern struct atomic_notifier_head panic_notifier_list;
-extern long (*panic_blink)(int state);
-__printf(1, 2)
-void panic(const char *fmt, ...) __noreturn __cold;
-void nmi_panic(struct pt_regs *regs, const char *msg);
-extern void oops_enter(void);
-extern void oops_exit(void);
-extern bool oops_may_print(void);
void do_exit(long error_code) __noreturn;
void complete_and_exit(struct completion *, long) __noreturn;
@@ -372,52 +364,8 @@ extern int __kernel_text_address(unsigned long addr);
extern int kernel_text_address(unsigned long addr);
extern int func_ptr_is_kernel_text(void *ptr);
-#ifdef CONFIG_SMP
-extern unsigned int sysctl_oops_all_cpu_backtrace;
-#else
-#define sysctl_oops_all_cpu_backtrace 0
-#endif /* CONFIG_SMP */
-
extern void bust_spinlocks(int yes);
-extern int panic_timeout;
-extern unsigned long panic_print;
-extern int panic_on_oops;
-extern int panic_on_unrecovered_nmi;
-extern int panic_on_io_nmi;
-extern int panic_on_warn;
-extern unsigned long panic_on_taint;
-extern bool panic_on_taint_nousertaint;
-extern int sysctl_panic_on_rcu_stall;
-extern int sysctl_max_rcu_stall_to_panic;
-extern int sysctl_panic_on_stackoverflow;
-
-extern bool crash_kexec_post_notifiers;
-/*
- * panic_cpu is used for synchronizing panic() and crash_kexec() execution. It
- * holds a CPU number which is executing panic() currently. A value of
- * PANIC_CPU_INVALID means no CPU has entered panic() or crash_kexec().
- */
-extern atomic_t panic_cpu;
-#define PANIC_CPU_INVALID -1
-
-/*
- * Only to be used by arch init code. If the user over-wrote the default
- * CONFIG_PANIC_TIMEOUT, honor it.
- */
-static inline void set_arch_panic_timeout(int timeout, int arch_default_timeout)
-{
- if (panic_timeout == arch_default_timeout)
- panic_timeout = timeout;
-}
-extern const char *print_tainted(void);
-enum lockdep_ok {
- LOCKDEP_STILL_OK,
- LOCKDEP_NOW_UNRELIABLE
-};
-extern void add_taint(unsigned flag, enum lockdep_ok);
-extern int test_taint(unsigned flag);
-extern unsigned long get_taint(void);
extern int root_mountflags;
extern bool early_boot_irqs_disabled;
@@ -436,36 +384,6 @@ extern enum system_states {
SYSTEM_SUSPEND,
} system_state;
-/* This cannot be an enum because some may be used in assembly source. */
-#define TAINT_PROPRIETARY_MODULE 0
-#define TAINT_FORCED_MODULE 1
-#define TAINT_CPU_OUT_OF_SPEC 2
-#define TAINT_FORCED_RMMOD 3
-#define TAINT_MACHINE_CHECK 4
-#define TAINT_BAD_PAGE 5
-#define TAINT_USER 6
-#define TAINT_DIE 7
-#define TAINT_OVERRIDDEN_ACPI_TABLE 8
-#define TAINT_WARN 9
-#define TAINT_CRAP 10
-#define TAINT_FIRMWARE_WORKAROUND 11
-#define TAINT_OOT_MODULE 12
-#define TAINT_UNSIGNED_MODULE 13
-#define TAINT_SOFTLOCKUP 14
-#define TAINT_LIVEPATCH 15
-#define TAINT_AUX 16
-#define TAINT_RANDSTRUCT 17
-#define TAINT_FLAGS_COUNT 18
-#define TAINT_FLAGS_MAX ((1UL << TAINT_FLAGS_COUNT) - 1)
-
-struct taint_flag {
- char c_true; /* character printed when tainted */
- char c_false; /* character printed when not tainted */
- bool module; /* also show as a per-module taint flag */
-};
-
-extern const struct taint_flag taint_flags[TAINT_FLAGS_COUNT];
-
extern const char hex_asc[];
#define hex_asc_lo(x) hex_asc[((x) & 0x0f)]
#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4]